2018297271493 has 4 divisors (see below), whose sum is σ = 2018300971360. Its totient is φ = 2018293571628.

The previous prime is 2018297271457. The next prime is 2018297271503. The reversal of 2018297271493 is 3941727928102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2018297271493 - 2⁹ = 2018297270981 is a prime.

It is a super-2 number, since 2×2018297271493² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018297271413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852363 + ... + 2182456.

It is an arithmetic number, because the mean of its divisors is an integer number (504575242840).

Almost surely, 2^{2018297271493} is an apocalyptic number.

It is an amenable number.

2018297271493 is a deficient number, since it is larger than the sum of its proper divisors (3699867).

2018297271493 is an equidigital number, since it uses as much as digits as its factorization.

2018297271493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699866.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 2018297271493 in words is "two trillion, eighteen billion, two hundred ninety-seven million, two hundred seventy-one thousand, four hundred ninety-three".